Please double-check for the turntable used at Terrace. Are the "pit" or pivot ring dimensions of either the TT at promontory or Terrace shown in the CPRR 1888 [sic] resurveying maps?

> There may not be anything left. It depends upon whether they used a wood or stone foundation for the center bearing. There is nothing but a shallow depression at Spooner summit from the old Glenbrook-to-Spooner railroad's turntable. It is quite likely that the Spooner table used a wood foundation--it was a lumber railroad. With the second turntable location at Promontory being associated with an engine house, I'd expect them to have used stone–and that may still be there. As you seem to know, there was also generally some kind of support at the ends of the table when lined up with the various tracks--to prevent the table from tipping as a loco rolled on or off the table. —Wendell Huffman > Wow. Thanks for the great amount of info. Wendell, you're probably right about minimal evidence on site. In 1869, with several trains per day being transferred between the UP and CP and the CP needing to turn at least four locomotives per day, probably more, then just maybe they used stone ...  more