| Activity | CP Cost per Hex | $ Cost per Hex |
| Grade Narrow Gauge | hex value | 1000 x hex value |
| Grade Standard Gauge | hex value | 2000 x hex value |
| Lay Track Narrow | 1 | 1000 |
| Lay Track Standard | 1 | 1000 |
| Lay Dual on Narrow, pre 32 | 2 | 2000 |
| Lay Dual on Narrow, post 32 | 3 | 3000 |
| Special | CP Cost per Hex | $ Cost per Hex |
| Bridge | pay grading costs once over | |
| Branch | pay again full cost already paid for hex | |
Tunnels
Each turn you may only expend CP's up to your Variation number (2 dice roll), and then, only if the roll was not doubles (12 excepted), plus you receive totally free any Bonus Points granted you by Event Card.
Mountain Passes
Only one Railroad may construct through a Mountain Pass.
Mountain Pass construction is not allowed at all during Winter turns.
Each turn you may only expend CP's up to your Variation number (2 dice roll), and then, only if the roll was not doubles (12 excepted), plus you receive totally free any Bonus Points granted you by Event Card.
The cost to Lay Track in a Mountain Pass is double that of normal.
Shaded Hexes
Only the first two players can cross a shaded hexside to another shaded hex. City and Mine hexes excepted.
Standard Grade
A Standard Grade may only be commenced from a continuous dual-track or standard grade connecting to Denver.