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N-scale train exiting tunnel and passing medium rock formation and standing rock on a small layout N-scale train entering a medium rock formation with tunnel (prototype) on a small diorama Engine exiting HO-scale tunnel, Collins-design, on a small diorama N-scale Cumberland Tunnel on a small diorama N-scale train passing through gap (tunnel) on Craggy Summit (00947) Engine exiting N-scale tunnel, Collins-design, on a small diorama Engines from 4 scales (O, HO, N, and Z) in front of HO Tunnel, Collins-design Will call area at Model Railroad Tunnels headquarters View of hte bottom of two of our tunnels showing their solid construction     


The Finest Model RR Tunnels available ONLY here or at our Retailers!
Use them as a starter (with our other products) to build your layout.
(Many fine photographic examples shown on our website.)

Retail customers click here for tunnels       Retail customers click here for rocks & mountains


Buy Now from Amazon      retail customers click to see all products      Click to Buy now at our ebay store

Made from plastic resin so they are "rock-solid." 

Resellers Click Here

Welcome to Model Railroad Tunnels! Tired of those cheap, lightweight tunnels that seem so out of place on your layout? Wishing for big, rocky mountains to make your model railroad look more more realistic but you just don't have the time or maybe the skills to create something from scratch?

We have the solution: realistic-looking rock formations, both with and without tunnels. 

We ship to our Authorized Retailers regularly

Retail/Wholesale Sales

Model Railroad Tunnels sells both direct to consumers and wholesale to retailers and other resellers. If you wish to purchase for resale, on the My Account page, click Register for a Wholesale User Account. To complete the process you will need to supply a copy of your state reseller license for verification. Wholesale products and pricing are only visible to registered and verified wholesale customers, except as noted for tunnels below.

Members of any Hobby Industry Association receive special pricing that includes shipping. Click here to see an example of Tunnel wholesale/retail pricing and learn how to access it.

Retail customers should click Register for a New Customer Account. Registration can also be accomplished as you complete the checkout process.

Model Railroad Tunnels products are now also available from Amazon ( and eBay (

HO-scale/N-scale/Z-scale Tunnels

We have SEVEN unique tunnels now! Both the Cumberlands and the Collins-design tunnels, in both HO-scale and N-scale versions, are now in stock. Both scale tunnels can do double-duty: the N-scale tunnel will also accomodate double-track Z-scale, and the HO-scale tunnel will handle double-track N-scale

We also have the Craggy Peak,  Craggy Summit, and Craggy Range. These can all work as either N-scale tunnels, Z-scale tunnels, or as mountains suitable for all scales to enhance your layout scenery. 

Image of NMRA S-7 modern standards diagram

Coming Soon! Our new design, the Rockies, is in production and will be available for Christmas in both N-scale and HO-scale sizes. Contact us at to reserve your order today.

These tunnels create the look of a realistic rock formation but without the weight of real rocks. Because they are made for plastic resin, they weigh very little, making them easy to move and position exactly as you want, yet they are solid enough to stay where placed. Using molded resin also provides exceptional detail with realistic texture and a convincing, natural color. 

Image of NMRA S-7 modern standards diagramSome of our customers have remarked that they were not aware of how solid and well made our tunnels were. It's not obvious from the above and eye-level photos. They were surprised when they picked one up and found that they are not just a shell as they thought. So here's a photo of one of our Collins-design tunnels from the bottom showing just how sturdy and solid they are.

All of our tunnel portal holes are cut to exceed NMRA S-7 Modern standards for the applicable scale.